Why is it impossible to have a temperature value below 0 K?

Question

PLease make the answer simple, not complex in order for me to understand it, thank u! =]
I also have another Q.....
What happens in term of the transfer of energy as heat when you hold a snowball in your hands?

Answer 1

It is not possible for the temperature to be below 0 K, because no physical meaning can be given to a negative temperature. Temperature is the thermal energy density inside a system (actually, it has a more precise definition, but trust me, you don't want it). It is not possible for thermal energy to be negative. Negative energy has no meaning. If energy is the capacity to do work, and zero energy is no capacity to do work, what is negative energy? I think I have made my point.

When you hold a snowball in your hands, your hands have more thermal energy density than the snowball. Thermal energy always tries to distribute itself evenly over a system, and if you add a snowball to your hands, you create a system because the two can now interact. So, energy is transferred from your hands to the snowball, as heat.

Answer 2

Temperature measures the energy of motion of particles, and this energy cannot be less than zero.

Holding a snowball - heat energy passes from your hands to the snowball by conduction, and is used inside the snowball to melt ice.

Answer 3

According the ideal gas equation,when the temperature is below 0K,the volume and pressure of the gas is negative and this is illogical to happen.
The heat in your body is transferred out to the snow ball and your hand's temperature drops.That is why you feel cold when you hold a snowball.

Answer 4

0 ok is absolute 0 whilst all molecule action stops. whilst all molecule action stops the temperature can't pass any decrease. enable me rephrase that. at modern so a techniques as all of us comprehend the temperature does not pass any decrease with the sought after tool available for measuring and calculating temperature. there continues to be the possibility that it does pass decrease and we only don't have the kit at modern to diploma and calculate any under 0 ok.

Answer 5

At absolute zero, theoretically all molecular motion comes to a stop so nothing can be colder (remember, temperature is determined by motion of molecules)

Answer 6

because on the kelvin scale you cannot go below 0
0 is the coldest